Ellison released a statement in response to the threats, accusing ISIS of twisting Islam's message.

"Daesh is a collections of liars, murderers, torturers and rapists," wrote Ellison, using the Arabic acronym for ISIS the terror organization reportedly dislikes. "No Muslim I know recognizes what they preach as Al-Islam. The fact that I'm on Daesh's bad side means that I am fighting for things like justice, tolerance and a more inclusive world."

Ellison is the first Muslim-American to be elected to Congress, taking office in 2008. He has been vocal in his criticism of Donald Trump and other GOP candidates for their rhetoric regarding Muslims in America.

Awad, who heads the Council on American-Islamic Relations, the largest Muslim civil liberties and advocacy organization in the country, also released a statement.

"Our life and death are in the hands of God," wrote Awad. "I believe this threat is a reflection of the outstanding work CAIR does in opposing the anti-Islamic message and brutal actions of ISIS and other terror groups. The best response to such threats is to continue challenging extremism, whether it is espoused by organizations like ISIS or by Islamophobes who seek to demonize Islam based on that group's brutality."

Awad also called on state and federal law enforcement authorities to provide protection to American-Muslim leaders who are under threat from ISIS.

According to the Hill, the ISIS propaganda piece accused Muslim leaders in the West of being apostates, or people who renounce their religious or political beliefs, and urged Western countries to be prepared for more attacks, referencing the November shootings in Paris and the March bombings in Brussels.

"Paris was a warning. Brussels was a reminder," the article read. "What is yet to come will be more devastating and more bitter."